Blower for boilers.



-L. SPRENGER. BLOWER FOR BOILERS. APPLICATION FILED SEPT.1,1 911. 1,026,060, Patented May 14, 1912.

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BLOWER FOR BOILERS. APPLICATION TILED SEPT. 1,1011.

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Patented May 14, 1912.

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LOUIS SPRENGER, OF DETROIT, MICHIGAN, ASSIGNOR TO DIAMOND SBECIALTX 00., OF DETROIT, MICHIGAN. I v

rowne lion BOILERS;

To all whom it. may concern:

Be it .known that I, Louis Srnnnsnn, a citizenof the United States of America, residing at Detroit, in the 'county of Wayne and State of Michigan, have invented. certain new and useful Improvements in Blowers for Boilers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates. to a boiler blower employed for the purpose of blowing the soot from the tubes of a steam boiler, and it has for one of its objects the provision of a device which comprises a series of superposed nozzles adapted to be projected into and withdrawn: from the interior of the boiler The invention has furthermore tor its object the provision of improved *merns whereby steam under pressure is admitted into said nozzles serially so that one or more of said nozzles may be active at the sametime.

Further objects of the invention will here inafter appear and be particularly defined in the claims.

The invention has been clearly illustrated inv the accompanying drawings in which-- Figure 1 represents a fraction of the wall of a boiler setting having my improved blower attached. thereto, the blower being shown in its inwardly projected position; and Fig. shows a modification of-the device.

Referring to the drawings, denotesthe side wall of a boiler setting having in its outer face a pocket 11 extending vertically and having a lining 12 to preserve the niasonary in proper condition. A series of superposed transverse apertures 13 are pro vided in the wall 10 adapted to permit the passage of a series oi? nozzles l-lwhich are rigidly attached to a pipe or shell 15 provided at points where the nozzles are at" tacl1ed,\vitli annularmeinbers 16 which have a close fit with a central tube 1? whereby steam may be admitted to the several nozzles 14 respectively. For this PUl'DOSG the tube 1'7 is provided with a series 0' apertures or ports 18 disposed angularly.about the axis of the tube 1-7 so that the latter must be rotated to bring all of saidnozzles into connnunica- The means whereby said tube is rotated in the several seats 16 above referred to, consists Specification of Letters Patent. 1 Application filed September 1, 1911.

Patented May 14., 1912. serial No. 647,170.

= substantially of a head cage 19 having perforations 20 and being rigidly secured to the upper end of the tube 17. The cage is atj tached to a spindle 21 jourri'aled in the casing 22 and having a suitable steam tight packing to prevent the leakage of steam therethrough. A gear 23 is secured to the. upper end of the spindle21- and is engaged'by a similar gear 24: loosely mounted on a stud 25- which is'rigidly held in a bracket 26. The latter is station'ary'upon' a pipe 27 which is. screwthreaded into the casing22 above men-k ti-oned, and the outer end-of -which commun'icates with the interior of a holder 28 having a stufiing box 29 to pack and rotatably support a vertical spindle 30, the axis of which is substantially in parallelism with that of the. tube 17 so that the nipple 30 and elbow 28 may constitute a-swiveled connection at that point. The lower end of thetube '17 may rest upon a plug 31 secured in the shell 15 and bifurcated to receive between the branches thereof a roller or wheel 32"ada ted to run upon the lining base plate 12' o the boiler setting. The nipple 30 communicates with a horizontal pipe 33 which in turn {LO-ID- municates through a swiveledelbow 34 with 1, and that furthermore the shell and the nozzles may be withdrawn from the interior ofthe setting when not in use.

Under ordinary circumstances the steam leader is disposed at "considerable height above the l loor' of the boiler room, ahd in order-to bring'the' mechanism whereby the tube" 17 "isrotated, within easy reach of the operator, I preferably mount a'sprocket 36 '100 upon the hub of the bevel "gearQ L; this s nojcket being connected by 'a. chain 3'? with p a similar sprocket 3'8 loosely mounted upon w a fixed stud 39 whi'ch'inay be attached to the shell 15in any'd'e'sired manner. of the spro'clget 38 carries a. hand wheel 40, the web of which is provided with a spring pressed plunger 41. adapted to engage a series of depressions 42 formed in a disk 43 which is rigidly attached to the stud 39, the 110 The hub depressions being so spaced as toj engage the stud in certain predetermined positions of the ports of the tube 17 so that the operator may be enabled, not only to ascertain which ports of the tube 17 are active but also to be sure that the ports are in full register with the respective nozzles pertaining thereto.

In Fig.2 I have illustrated a modification of the tube operating mechanism, the distributing tube 17 extending, in this instance, to a considerable distance above the floor as for example, in vertical boilers, and the operating mechanism, as here shown in a position intermediate the extreme end of the tube 17 which is provided with a bevel gear 23 in engagement with a similar gear 24:. The-latter gear is secured to a spindle 4:5 journaled in a plug sleeve 46 which is provided with a stufiing box 47. The s indle 45 also carries a hand wheel 48 provided with a spring pressed plunger #9 which is adapted to engage suitable depressions formed in the front face of a casing 50, the interior of which is chambered to form a steam chamber 51 which is in constant communication with the interior of the tube 17 through an aperture 52. I lxtending vertically and at opposite sides from the casing 50, are the tube supporting shells 53, provided with annular seats '16- as previously described in connection with Fig. 1. Likewise the nozzles like those shown at It may be employed as before. Steam is admitted into the casing or chamber 51 through the nipple which corresponds to that shown in Flg. 1 and which is also connected with the leader 35 as before stated.

From the foregoing it will be seen that the 'mechanism for operating the tube 17* is in this instance direct in 'contradistinction to the sprocket-and-chain mechanism previously described.

Many changes may be made in the construction and organization of some of the elements of my improved device without departing from the spirit of the invention.

1. The combination with a steam-supply pipe, of a shell, nozzles secured to said shell and projecting thereinto, a ported tube rotatable in the shell, means for'rotating said tube to bring .its'ports into register with the nozzles respectively, and means'for supporting said shell for bodily swinging movement on the supply pipe toinove said nozzles simultaneously'a'nd equally.

2. The combination with a steam-supply pipe, of a shell connected therewith and having stationary ported annular seats, nozzles secured'to said shell and projecting into said seats, a ported tube rotatable in the shell, and means for rotating said tube to bringits ports into register with the nozzles respectively.

3. The combination with a vertical steamsupply, a horizontal leader swiveled thereon, a vertical nipple on said leader, and a casing swiveled on said ni )ple for movement in ahorizontal plane, of a vertical shell secured to said casing, nozzles communicating with the interior of said shell, a valve tube having unalined ports adapted to register with the nozzles, and means for rotating said tube.

4. The combination with a vertical steamsupply, a horizontal leader swiveled thereon, a vertical nipple on said leader, and a casing swiveled on said nipple for movement in a horizontal plane, of a vertical shell securedto said casing, nozzles communicating with the interior of said shell, a valve tube havingunalined ports adapted to register with the nozzles, a spindle passing through said casing and secured to said tube, and means for rotating said spindle.

5. The combination with a vertical steamsupply, a horizontal leader swiveled thereon, a vertical nipple on said leader, and a casing horizontally swiveled on said nipple, of' a vertical shell secured to said casing, nozzles cdmmunicating with the interior of said shell, a alve tube having unalined ports adapted to register with the nozzles, a spindle passing through said casing and secured to saiditube, a hand-wheel, .and means for connecting said spindle and hand-wheel for rotating said spindle.

6. The COIYlblIlfll'lOIl'Wlill) a steam-supply pipe, of a shell connected therewith, nozzles secured to said shell and projecting thereinto, a ported tube rotatable in the. shell, andmeans intermediate the ends of the tube and the outermost nozzles thereof for rotating said tube'to bring its ports into register with the nozzles respectively. said means comprising a' hand-wheel and gear connection therefor.

7.-'Ihe combination. with a vertical steamsupply, a horizontal leader swivcled thereon, a vertical nipple on said leader, and a casing swivcled on said nipple, of a verti :al shell secured to said casing horizontally, nozzles comihunicatingwitli the interior of said shell, a valve tube having unalined ports adapted to register with the nozzles, a spin die passing through said casing and secured 

